Autoencoding Galaxy Spectra. II. Redshift Invariance and Outlier Detection

We present an unsupervised outlier detection method for galaxy spectra based on the spectrum autoencoder architecture spender , which reliably captures spectral features and provides highly realistic reconstructions for SDSS galaxy spectra. We interpret the sample density in the autoencoder latent s...

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Bibliographic Details
Main Authors: Yan Liang, Peter Melchior, Sicong Lu, Andy Goulding, Charlotte Ward
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:The Astronomical Journal
Subjects:
Online Access:https://doi.org/10.3847/1538-3881/ace100